libervia-backend: sat/memory/cache.py annotate

annotate sat/memory/cache.py @ 3048:1761e4823527

changelog: update

author	Goffi <goffi@goffi.org>
date	Tue, 01 Oct 2019 22:49:11 +0200
parents	ab2696e34d29
children	9d0df638c8b4

rev	line source
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2771 diff changeset	1 #!/usr/bin/env python3
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	2 # -- coding: utf-8 --
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	3
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	4 # SAT: a jabber client
2771 003b8b4b56a7 date update Goffi <goffi@goffi.org> parents: 2624 diff changeset	5 # Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org)
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	6
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	7 # This program is free software: you can redistribute it and/or modify
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	8 # it under the terms of the GNU Affero General Public License as published by
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	9 # the Free Software Foundation, either version 3 of the License, or
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	10 # (at your option) any later version.
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	11
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	12 # This program is distributed in the hope that it will be useful,
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	15 # GNU Affero General Public License for more details.
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	16
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	17 # You should have received a copy of the GNU Affero General Public License
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	19
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	20 from sat.core.log import getLogger
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2562 diff changeset	21
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	22 log = getLogger(__name__)
2166 1b3fbb76984b core (memory/cache): escape profile when creating cache dir Goffi <goffi@goffi.org> parents: 2116 diff changeset	23 from sat.tools.common import regex
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	24 from sat.core import exceptions
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	25 from sat.core.constants import Const as C
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2771 diff changeset	26 import pickle as pickle
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	27 import mimetypes
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	28 import os.path
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	29 import time
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	30
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2562 diff changeset	31 DEFAULT_EXT = ".raw"
2509 d485e9416493 core (memory/cache): common cache: Goffi <goffi@goffi.org> parents: 2506 diff changeset	32
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	33
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	34 class Cache(object):
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	35 """generic file caching"""
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	36
2509 d485e9416493 core (memory/cache): common cache: Goffi <goffi@goffi.org> parents: 2506 diff changeset	37 def __init__(self, host, profile):
d485e9416493 core (memory/cache): common cache: Goffi <goffi@goffi.org> parents: 2506 diff changeset	38 """
d485e9416493 core (memory/cache): common cache: Goffi <goffi@goffi.org> parents: 2506 diff changeset	39 @param profile(unicode, None): ame of the profile to set the cache for
d485e9416493 core (memory/cache): common cache: Goffi <goffi@goffi.org> parents: 2506 diff changeset	40 if None, the cache will be common for all profiles
d485e9416493 core (memory/cache): common cache: Goffi <goffi@goffi.org> parents: 2506 diff changeset	41 """
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	42 self.profile = profile
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2562 diff changeset	43 path_elts = [host.memory.getConfig("", "local_dir"), C.CACHE_DIR]
2509 d485e9416493 core (memory/cache): common cache: Goffi <goffi@goffi.org> parents: 2506 diff changeset	44 if profile:
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2771 diff changeset	45 path_elts.extend(["profiles", regex.pathEscape(profile)])
2509 d485e9416493 core (memory/cache): common cache: Goffi <goffi@goffi.org> parents: 2506 diff changeset	46 else:
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2771 diff changeset	47 path_elts.append("common")
2509 d485e9416493 core (memory/cache): common cache: Goffi <goffi@goffi.org> parents: 2506 diff changeset	48 self.cache_dir = os.path.join(*path_elts)
d485e9416493 core (memory/cache): common cache: Goffi <goffi@goffi.org> parents: 2506 diff changeset	49
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	50 if not os.path.exists(self.cache_dir):
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	51 os.makedirs(self.cache_dir)
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	52
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	53 def getPath(self, filename):
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	54 """return cached file URL
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	55
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	56 @param filename(unicode): cached file name (cache data or actual file)
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	57 """
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2771 diff changeset	58 if not filename or "/" in filename:
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2562 diff changeset	59 log.error(
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2771 diff changeset	60 "invalid char found in file name, hack attempt? name:{}".format(filename)
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2562 diff changeset	61 )
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2771 diff changeset	62 raise exceptions.DataError("Invalid char found")
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	63 return os.path.join(self.cache_dir, filename)
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	64
2517 cd7a53c31eb6 core (memory/cache): new getMetadata method to retrieve metadata without opening the file Goffi <goffi@goffi.org> parents: 2509 diff changeset	65 def getMetadata(self, uid):
cd7a53c31eb6 core (memory/cache): new getMetadata method to retrieve metadata without opening the file Goffi <goffi@goffi.org> parents: 2509 diff changeset	66 """retrieve metadata for cached data
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	67
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	68 @param uid(unicode): unique identifier of file
2517 cd7a53c31eb6 core (memory/cache): new getMetadata method to retrieve metadata without opening the file Goffi <goffi@goffi.org> parents: 2509 diff changeset	69 @return (dict, None): metadata with following keys:
cd7a53c31eb6 core (memory/cache): new getMetadata method to retrieve metadata without opening the file Goffi <goffi@goffi.org> parents: 2509 diff changeset	70 see [cacheData] for data details, an additional "path" key is the full path to cached file.
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	71 None if file is not in cache (or cache is invalid)
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	72 """
2517 cd7a53c31eb6 core (memory/cache): new getMetadata method to retrieve metadata without opening the file Goffi <goffi@goffi.org> parents: 2509 diff changeset	73
2116 766dbbec56f2 core (memory/cache): geFilePath now return None when uid is empty Goffi <goffi@goffi.org> parents: 2109 diff changeset	74 uid = uid.strip()
766dbbec56f2 core (memory/cache): geFilePath now return None when uid is empty Goffi <goffi@goffi.org> parents: 2109 diff changeset	75 if not uid:
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2771 diff changeset	76 raise exceptions.InternalError("uid must not be empty")
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	77 cache_url = self.getPath(uid)
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	78 if not os.path.exists(cache_url):
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	79 return None
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	80
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	81 try:
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2562 diff changeset	82 with open(cache_url, "rb") as f:
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	83 cache_data = pickle.load(f)
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	84 except IOError:
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2771 diff changeset	85 log.warning("can't read cache at {}".format(cache_url))
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	86 return None
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	87 except pickle.UnpicklingError:
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2771 diff changeset	88 log.warning("invalid cache found at {}".format(cache_url))
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	89 return None
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	90
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	91 try:
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2562 diff changeset	92 eol = cache_data["eol"]
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	93 except KeyError:
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2771 diff changeset	94 log.warning("no End Of Life found for cached file {}".format(uid))
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	95 eol = 0
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	96 if eol < time.time():
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2562 diff changeset	97 log.debug(
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2771 diff changeset	98 "removing expired cache (expired for {}s)".format(time.time() - eol)
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2562 diff changeset	99 )
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	100 return None
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	101
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2562 diff changeset	102 cache_data["path"] = self.getPath(cache_data["filename"])
2517 cd7a53c31eb6 core (memory/cache): new getMetadata method to retrieve metadata without opening the file Goffi <goffi@goffi.org> parents: 2509 diff changeset	103 return cache_data
cd7a53c31eb6 core (memory/cache): new getMetadata method to retrieve metadata without opening the file Goffi <goffi@goffi.org> parents: 2509 diff changeset	104
cd7a53c31eb6 core (memory/cache): new getMetadata method to retrieve metadata without opening the file Goffi <goffi@goffi.org> parents: 2509 diff changeset	105 def getFilePath(self, uid):
cd7a53c31eb6 core (memory/cache): new getMetadata method to retrieve metadata without opening the file Goffi <goffi@goffi.org> parents: 2509 diff changeset	106 """retrieve absolute path to file
cd7a53c31eb6 core (memory/cache): new getMetadata method to retrieve metadata without opening the file Goffi <goffi@goffi.org> parents: 2509 diff changeset	107
cd7a53c31eb6 core (memory/cache): new getMetadata method to retrieve metadata without opening the file Goffi <goffi@goffi.org> parents: 2509 diff changeset	108 @param uid(unicode): unique identifier of file
cd7a53c31eb6 core (memory/cache): new getMetadata method to retrieve metadata without opening the file Goffi <goffi@goffi.org> parents: 2509 diff changeset	109 @return (unicode, None): absolute path to cached file
cd7a53c31eb6 core (memory/cache): new getMetadata method to retrieve metadata without opening the file Goffi <goffi@goffi.org> parents: 2509 diff changeset	110 None if file is not in cache (or cache is invalid)
cd7a53c31eb6 core (memory/cache): new getMetadata method to retrieve metadata without opening the file Goffi <goffi@goffi.org> parents: 2509 diff changeset	111 """
cd7a53c31eb6 core (memory/cache): new getMetadata method to retrieve metadata without opening the file Goffi <goffi@goffi.org> parents: 2509 diff changeset	112 metadata = self.getMetadata(uid)
cd7a53c31eb6 core (memory/cache): new getMetadata method to retrieve metadata without opening the file Goffi <goffi@goffi.org> parents: 2509 diff changeset	113 if metadata is not None:
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2562 diff changeset	114 return metadata["path"]
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	115
2509 d485e9416493 core (memory/cache): common cache: Goffi <goffi@goffi.org> parents: 2506 diff changeset	116 def cacheData(self, source, uid, mime_type=None, max_age=None, filename=None):
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	117 """create cache metadata and file object to use for actual data
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	118
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	119 @param source(unicode): source of the cache (should be plugin's import_name)
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	120 @param uid(unicode): an identifier of the file which must be unique
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	121 @param mime_type(unicode): MIME type of the file to cache
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	122 it will be used notably to guess file extension
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	123 @param max_age(int, None): maximum age in seconds
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	124 the cache metadata will have an "eol" (end of life)
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	125 None to use default value
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	126 0 to ignore cache (file will be re-downloaded on each access)
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	127 @param filename: if not None, will be used as filename
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	128 else one will be generated from uid and guessed extension
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	129 @return(file): file object opened in write mode
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	130 you have to close it yourself (hint: use with statement)
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	131 """
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	132 cache_url = self.getPath(uid)
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	133 if filename is None:
2509 d485e9416493 core (memory/cache): common cache: Goffi <goffi@goffi.org> parents: 2506 diff changeset	134 if mime_type:
d485e9416493 core (memory/cache): common cache: Goffi <goffi@goffi.org> parents: 2506 diff changeset	135 ext = mimetypes.guess_extension(mime_type, strict=False)
d485e9416493 core (memory/cache): common cache: Goffi <goffi@goffi.org> parents: 2506 diff changeset	136 if ext is None:
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2562 diff changeset	137 log.warning(
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2771 diff changeset	138 "can't find extension for MIME type {}".format(mime_type)
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2562 diff changeset	139 )
2509 d485e9416493 core (memory/cache): common cache: Goffi <goffi@goffi.org> parents: 2506 diff changeset	140 ext = DEFAULT_EXT
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2771 diff changeset	141 elif ext == ".jpe":
ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2771 diff changeset	142 ext = ".jpg"
2509 d485e9416493 core (memory/cache): common cache: Goffi <goffi@goffi.org> parents: 2506 diff changeset	143 else:
d485e9416493 core (memory/cache): common cache: Goffi <goffi@goffi.org> parents: 2506 diff changeset	144 ext = DEFAULT_EXT
d485e9416493 core (memory/cache): common cache: Goffi <goffi@goffi.org> parents: 2506 diff changeset	145 mime_type = None
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	146 filename = uid + ext
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	147 if max_age is None:
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	148 max_age = C.DEFAULT_MAX_AGE
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2562 diff changeset	149 cache_data = {
3028 ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2771 diff changeset	150 "source": source,
ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2771 diff changeset	151 "filename": filename,
ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2771 diff changeset	152 "eol": int(time.time()) + max_age,
ab2696e34d29 Python 3 port: Goffi <goffi@goffi.org> parents: 2771 diff changeset	153 "mime_type": mime_type,
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2562 diff changeset	154 }
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	155 file_path = self.getPath(filename)
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	156
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2562 diff changeset	157 with open(cache_url, "wb") as f:
2109 85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	158 pickle.dump(cache_data, f, protocol=2)
85f3e12e984d core (memory/cache): file caching handling, first draft: Goffi <goffi@goffi.org> parents: diff changeset	159
2624 56f94936df1e code style reformatting using black Goffi <goffi@goffi.org> parents: 2562 diff changeset	160 return open(file_path, "wb")

Mercurial > libervia-backend

annotate sat/memory/cache.py @ 3048:1761e4823527